Emlog up to 2.6.15 User_Model getUserDataByLogin Account sql injection

Summaryinfo

A vulnerability labeled as critical has been found in Emlog up to 2.6.15. Affected by this issue is the function User_Model::getUserDataByLogin of the component User_Model. Executing a manipulation of the argument Account can lead to sql injection. This vulnerability is handled as CVE-2026-53756. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Emlog up to 2.6.15 and classified as critical. This vulnerability affects the function User_Model::getUserDataByLogin of the component User_Model. The manipulation of the argument account with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Emlog is an open source website building system. Prior to version 2.6.16, Emlog CMS Pro contains a blind SQL injection in User_Model::getUserDataByLogin(). The $account parameter is directly interpolated into SQL queries without any filtering. The vulnerability is reachable through the auth cookie validation path, where $username is extracted from the cookie and passed unfiltered into SQL — guarded only by an HMAC signature that requires AUTH_KEY to forge. This issue has been patched in version 2.6.16.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-53756 since 06/10/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1505.

Upgrading to version 2.6.16 eliminates this vulnerability.

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Productinfo

Name

• Emlog

Version

• 2.6.0
• 2.6.1
• 2.6.2
• 2.6.3
• 2.6.4
• 2.6.5
• 2.6.6
• 2.6.7
• 2.6.8
• 2.6.9
• 2.6.10
• 2.6.11
• 2.6.12
• 2.6.13
• 2.6.14
• 2.6.15

Website

• Product: https://github.com/emlog/emlog/

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